ludus. Move children and renders fiels from object to entity.

Move children field from object to entity.
Add access to child (by ID) interface methods - implemented in entity.
Move child iterator methods from object to entity.
Move renders field from object to entity.
Add access to render (by ID).
Move render iterator methods from object to entity.
ludus. Changes to object.

Move children and renders field to entity - reverts previous changes.
Add child and render access interface methods to object. Implement the methods in entity.
Update ingenium use new object interface and creation when creating the root object.
ludus. Updates to object render access methods.

Remove the add render method from entity.
Change object render access methods to access by render index.
pingo. Change renderer pass type to an enum class.